The NJU6393 is a low voltage operation C-MOS quartz crystal oscillator which is possible to 65MHz, It consists of an oscillation amplifier and a 3-state output buffer. This oscillation amplifier incorporates feed-back resistance and oscillation capacitors (Cg, Cd), therefore it requires no external component except quartz crystal. The driverbility of the 3-state output buffer is 6mA, thus it can drive C-MOS load.